This product is a gift from the makeup Gods. It comes in 6 shades and is meant to be mixed with your foundation to adjust the color/tone. It comes in two formulas - water based and oil based - depending on whether your foundation is water based or oil based. I use the yellow water-based one and it's a miracle. A single drop creates the perfect shade of foundation. I will note that it [at least the yellow one] tends to darken the makeup a bit, so be mindful of that. Overall, a wonderful product and 100% worth the price.
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